The New York Post's Keith Kelly, who has faithfully chronicled Conde Nast Publications' annual Christmas luncheon at the Four Seasons, won't be able to publish his seating chart this year. The party has been scrapped. For decades, the annual Christmas party that Condé Nast Chairman S.I. Newhouse Jr. held for the chief editors, publishers and other top executives was considered the unofficial start of the holiday party scene in the media and magazine world. Conde observers looked at the luncheon's seating chart to get clues about who sat at Newhouse's table, and thus was in favor, and who was seated in the restaurant's equivalent of Siberia. But with this week's layoffs, management decided a party was not a good idea.